Stock Air Cleaner
Thread Starter
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Road Captain
Joined: Jun 2008
Posts: 530
Likes: 2
From: Hereford, Arizona
I had no idea I was asking a stupid question. But if what I've presented is bogus then show me!
So far all I've gotten for answers is that I'm just stupid because everyone changes the air filter. The stock one is junk, won't flow enough, etc.
Nothing to back it up, just take your word for it. Sorry, in fact I'm going to PROVE you guys wrong. My buddy has a K&N filter on his bike and I'm going to put it on mine and I'll bet that my bike runs no different.
And if it does its only because of that tiny intake hole not allowing enough air in. And if that is the case I'm going to open my backplate up so it can flow better. And to test that before actually hacking the backplate all I have to do is take off the chrome AC Cover.
I'll get my TTS Mastertune before doing that though. BTW Hrd Rider, with the TTS Mastertune no Dyno required, VTune takes care of all the fine adjustments.
So far all I've gotten for answers is that I'm just stupid because everyone changes the air filter. The stock one is junk, won't flow enough, etc.
Nothing to back it up, just take your word for it. Sorry, in fact I'm going to PROVE you guys wrong. My buddy has a K&N filter on his bike and I'm going to put it on mine and I'll bet that my bike runs no different.
And if it does its only because of that tiny intake hole not allowing enough air in. And if that is the case I'm going to open my backplate up so it can flow better. And to test that before actually hacking the backplate all I have to do is take off the chrome AC Cover.
I'll get my TTS Mastertune before doing that though. BTW Hrd Rider, with the TTS Mastertune no Dyno required, VTune takes care of all the fine adjustments.
Ultimate HDF Member
Joined: Oct 2007
Posts: 5,257
Likes: 6
From: Leander Texas
i had a pclll and slip ons at first because i wanted cooler running and a could not afford a big sucker. as you now see i have the auto tune thundermax.
i hacked the back plate on my sportster and used a k&n filter and a hyper-charger spacer and plugged the vapor holes and re routed the vent to the ground. by the time i finished i had close to buying a big sucker for $115. that is why i waited on the fatboy. it only make a difference on the dyno run of a few HP but gave me options for different looks and covers and i am sure the engine was breathing better. Try running with a ski mask as opposed to walking and there is a difference.
if you want to chop up the back plate go for it. you cant get used ones on ebay for under $10
i hacked the back plate on my sportster and used a k&n filter and a hyper-charger spacer and plugged the vapor holes and re routed the vent to the ground. by the time i finished i had close to buying a big sucker for $115. that is why i waited on the fatboy. it only make a difference on the dyno run of a few HP but gave me options for different looks and covers and i am sure the engine was breathing better. Try running with a ski mask as opposed to walking and there is a difference.
if you want to chop up the back plate go for it. you cant get used ones on ebay for under $10
Last edited by tk353; Oct 17, 2009 at 07:09 AM.
Road Master
Joined: Apr 2009
Posts: 754
Likes: 24
From: Southern Maine
I'm kinda' leaning with Plane on this one (in theory anyway). I have read a lot of independent testing of filter material in automotive applications. Many of them show no appreciable flow advantage over a CLEAN paper filter in a relatively stock engine. The advantages all seem to show up in airbox and intake track modifications or improvements that may come with a "filter kit". The other advantages come with long term re-usability and effectiveness when wet (a definite motorcycle concern) as paper filters become completely obstructed when wet.
I am going to have to do some more research on this one. Thanks Plane, you have asked a really interesting question.
I am going to have to do some more research on this one. Thanks Plane, you have asked a really interesting question.
Road Warrior
Joined: Dec 2006
Posts: 1,533
Likes: 2
From: Nebraska
I think some of us need to take a deep breath here. This over an air filter?
Plane, your question asked was not stupid. In all honesty it's a very good question that warrants some value behind it. The problem that I see now is your delivery. You really only asked half your question without a better explanation behind it as to where you were going with the question. No one understood why you were asking what you were.
True, it doesn't warrant to be called stupid. Please remember though. No one here asked you to prove anyone wrong about anything.
I do ask this though. Proceed with your theory. If it turns out that you can show people that they can only spend 800 dollars (purely a figure out of the air) and get the same thing that over 1000 dollars (stage 1/fuel management/dyno) can deliver then more power to you. I can tell you I would listen. Just deliver it in a presentable way like your helping a brother out rather than upstaging.
And yes... we should all be nicer people as well.
Plane, your question asked was not stupid. In all honesty it's a very good question that warrants some value behind it. The problem that I see now is your delivery. You really only asked half your question without a better explanation behind it as to where you were going with the question. No one understood why you were asking what you were.
True, it doesn't warrant to be called stupid. Please remember though. No one here asked you to prove anyone wrong about anything.
I do ask this though. Proceed with your theory. If it turns out that you can show people that they can only spend 800 dollars (purely a figure out of the air) and get the same thing that over 1000 dollars (stage 1/fuel management/dyno) can deliver then more power to you. I can tell you I would listen. Just deliver it in a presentable way like your helping a brother out rather than upstaging.
And yes... we should all be nicer people as well.
Thread Starter
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Road Captain
Joined: Jun 2008
Posts: 530
Likes: 2
From: Hereford, Arizona
Plane, your question asked was not stupid. In all honesty it's a very good question that warrants some value behind it. The problem that I see now is your delivery. You really only asked half your question without a better explanation behind it as to where you were going with the question. No one understood why you were asking what you were.
I'm going to do a little experimenting today and I'll let everyone know what I did and what I found out. If I'm wrong I'll man up to that too.
Banned
Joined: Sep 2009
Posts: 7,580
Likes: 7
From: The Internet (& Dyer, Indiana)
I had no idea I was asking a stupid question. But if what I've presented is bogus then show me!
So far all I've gotten for answers is that I'm just stupid because everyone changes the air filter. The stock one is junk, won't flow enough, etc.
Nothing to back it up, just take your word for it. Sorry, in fact I'm going to PROVE you guys wrong. My buddy has a K&N filter on his bike and I'm going to put it on mine and I'll bet that my bike runs no different.
And if it does its only because of that tiny intake hole not allowing enough air in. And if that is the case I'm going to open my backplate up so it can flow better. And to test that before actually hacking the backplate all I have to do is take off the chrome AC Cover.
I'll get my TTS Mastertune before doing that though. BTW Hrd Rider, with the TTS Mastertune no Dyno required, VTune takes care of all the fine adjustments.
So far all I've gotten for answers is that I'm just stupid because everyone changes the air filter. The stock one is junk, won't flow enough, etc.
Nothing to back it up, just take your word for it. Sorry, in fact I'm going to PROVE you guys wrong. My buddy has a K&N filter on his bike and I'm going to put it on mine and I'll bet that my bike runs no different.
And if it does its only because of that tiny intake hole not allowing enough air in. And if that is the case I'm going to open my backplate up so it can flow better. And to test that before actually hacking the backplate all I have to do is take off the chrome AC Cover.
I'll get my TTS Mastertune before doing that though. BTW Hrd Rider, with the TTS Mastertune no Dyno required, VTune takes care of all the fine adjustments.
Bwhahahahaha!
You ask a question, then DEMAND PROOF of any answer, because we are presumed liars????????? F U !
Ever think that HD put such a small hole in there cuz the restrictive air filter can't flow enough to need a bigger hole??????
Sure it's "enough" for a stock motor. But if you are okay with just "enough" why are you wasting money on a TTS?
If you want better than "enough",..... that involves more air flow. (the most basic thing in the world, and you can not grasp that?).
You wanna be one of them stubborn types, so be it. But stop wasting our time asking for proof of stuff that we have already experienced. Go "experience" it yourself.
Reminds me of a guy I know. Will pester you to death for building advice, but argue every suggestion you give him. Why ask if you already know? WTF.
Road Master
Joined: Aug 2009
Posts: 945
Likes: 7
I think some of us need to take a deep breath here. This over an air filter?
Plane, your question asked was not stupid. In all honesty it's a very good question that warrants some value behind it. The problem that I see now is your delivery. You really only asked half your question without a better explanation behind it as to where you were going with the question. No one understood why you were asking what you were.
True, it doesn't warrant to be called stupid. Please remember though. No one here asked you to prove anyone wrong about anything.
I do ask this though. Proceed with your theory. If it turns out that you can show people that they can only spend 800 dollars (purely a figure out of the air) and get the same thing that over 1000 dollars (stage 1/fuel management/dyno) can deliver then more power to you. I can tell you I would listen. Just deliver it in a presentable way like your helping a brother out rather than upstaging.
And yes... we should all be nicer people as well.
Plane, your question asked was not stupid. In all honesty it's a very good question that warrants some value behind it. The problem that I see now is your delivery. You really only asked half your question without a better explanation behind it as to where you were going with the question. No one understood why you were asking what you were.
True, it doesn't warrant to be called stupid. Please remember though. No one here asked you to prove anyone wrong about anything.
I do ask this though. Proceed with your theory. If it turns out that you can show people that they can only spend 800 dollars (purely a figure out of the air) and get the same thing that over 1000 dollars (stage 1/fuel management/dyno) can deliver then more power to you. I can tell you I would listen. Just deliver it in a presentable way like your helping a brother out rather than upstaging.
And yes... we should all be nicer people as well.
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Tourer
Joined: Jun 2007
Posts: 362
Likes: 1
From: Texas
Some flow numbers. I had a bunch, but these were all done using the same equipment to test;
Harley flow numbers air cleaner.
HD stock - 171CFM
Stage 1 Big Sucker - 200CFM
Stage 2 Big Sucker - 250CFM
Kuryakyn Twin Velocity - 270CFM
E-3014 = 248 CFM RK-3009 kit
E-3037 = 301 CFM RK-3910 kit
HD-0800 = 231 CFM SE replacement
Doherty Powerpacc - 287CFM
SE Air Cleaner - 287 CFM
Zippers - 321 CFM
Woods Carbs - 4 models 235CFM upto 340CFM
BC Overflow - 800+CFM
Harley flow numbers air cleaner.
HD stock - 171CFM
Stage 1 Big Sucker - 200CFM
Stage 2 Big Sucker - 250CFM
Kuryakyn Twin Velocity - 270CFM
E-3014 = 248 CFM RK-3009 kit
E-3037 = 301 CFM RK-3910 kit
HD-0800 = 231 CFM SE replacement
Doherty Powerpacc - 287CFM
SE Air Cleaner - 287 CFM
Zippers - 321 CFM
Woods Carbs - 4 models 235CFM upto 340CFM
BC Overflow - 800+CFM
Banned
Joined: Sep 2009
Posts: 7,580
Likes: 7
From: The Internet (& Dyer, Indiana)
Some flow numbers. I had a bunch, but these were all done using the same equipment to test;
Harley flow numbers air cleaner.
HD stock - 171CFM
Stage 1 Big Sucker - 200CFM
Stage 2 Big Sucker - 250CFM
Kuryakyn Twin Velocity - 270CFM
E-3014 = 248 CFM RK-3009 kit
E-3037 = 301 CFM RK-3910 kit
HD-0800 = 231 CFM SE replacement
Doherty Powerpacc - 287CFM
SE Air Cleaner - 287 CFM
Zippers - 321 CFM
Woods Carbs - 4 models 235CFM upto 340CFM
BC Overflow - 800+CFM
Harley flow numbers air cleaner.
HD stock - 171CFM
Stage 1 Big Sucker - 200CFM
Stage 2 Big Sucker - 250CFM
Kuryakyn Twin Velocity - 270CFM
E-3014 = 248 CFM RK-3009 kit
E-3037 = 301 CFM RK-3910 kit
HD-0800 = 231 CFM SE replacement
Doherty Powerpacc - 287CFM
SE Air Cleaner - 287 CFM
Zippers - 321 CFM
Woods Carbs - 4 models 235CFM upto 340CFM
BC Overflow - 800+CFM